Hi - if all the contrasts are consistent then this is possibly due to
mixing versions of FEAT. It is complaining at the stage when it is
reading the old .con and .mat files for peak-peak height....
You _might_ fix this by re-running
feat_model design
in each FEAT directory.....otherwise the simplest thing would be to
stick to one version for the whole analysis.
Cheers.
On 13 Nov 2006, at 20:03, Katie Karlsgodt wrote:
> Hello,
> I'm running a higher level analysis comparing 2 groups. When I
> load the
> .fsf into Fsl3.3, I get the following error:
>
> dlpfc:/space/raid3/data/cannon/hbm_prodromal_vcap/GROUP_ANALYSES>
> syntax
> error in expression "0 + ": premature end of expression
> while executing
> "expr $mean_lcon + $mean_lcon_incr "
> (procedure "feat5:proc" line 291)
> invoked from within
> "feat5:proc [ file rootname [ lindex $argv 0 ] ]"
> (file "/space/raid/fmri/fsl3.3.7/bin/feat" line 16)
>
> Based on the report.log, its crashing at varcope5. I've checked to
> see that
> all the subjects have the same number of contrasts (9), and looked at
> everyone's varcope5 using slicesdir, just to make sure an image really
> exists. I noticed a previous email about this in the archives, but
> it seemed
> that the problem there was not having the same contrasts for each
> subject,
> and (at least as far as I can tell right now), I don't think thats
> what is
> happening here.
>
> It does run through when I load the same .fsf into 3.2, though. So,
> I can
> run it in 3.2, but I'd like to understand why its happening- is
> possible
> that 3.3 might have a small bug that is not in 3.2, or that 3.3 is
> sensitive
> to some problem with the data that 3.2 isn't picking up on? Is
> there any
> reason its not ok to just run it in 3.2 instead?
>
> thanks,
> Katie
> ___________________________________
> Katie Karlsgodt
> Dept of Psychology/Cognitive Neuroscience
> University of California, Los Angeles
>
> [log in to unmask]
> phone: (310) 794-9673
> fax: (310) 794-9740
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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